ZCZC MIATWOAT ALL TTAA00 KNHC DDHHMM Tropical Weather Outlook NWS National Hurricane Center Miami FL 800 AM EDT Fri Sep 20 2019 For the North Atlantic...Caribbean Sea and the Gulf of Mexico:
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NOTE 1. A tropical wave located about 700 miles east of the Windward Islands continues to produce disorganized showers and thunderstorms. The wave is expected to move quickly westward at about 20 mph during the next few days, and some development is possible while it approaches and moves across the Windward Islands this weekend. Upper-level winds are forecast to become less conducive for development once the wave moves over the eastern Caribbean Sea early next week. * Formation chance through 48 hours...low...20 percent. * Formation chance through 5 days...low...30 percent. #####################################################################


2. A broad area of low pressure located over the central Caribbean Sea is producing disorganized shower and thunderstorm activity, mainly to the east and northeast of its center of circulation. This system is expected to move slowly west-northwestward and significant development is unlikely due to strong upper-level winds. Regardless of development, locally heavy rainfall is possible over portions of the Greater Antilles during the next few days. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...low...10 percent.
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NOTE 3. A tropical wave is forecast to move off the west coast of Africa this weekend. Environmental conditions are expected to be conducive for development, and a tropical depression or tropical storm is likely to form early next week while the wave moves westward across the eastern tropical Atlantic. * Formation chance through 48 hours...low...10 percent. * Formation chance through 5 days...high...70 percent. ####################################################################

Forecaster Zelinsky


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000 WTNT35 KNHC 201457 TCPAT5 BULLETIN Hurricane Jerry Advisory Number 13 NWS National Hurricane Center Miami FL AL102019 1100 AM AST Fri Sep 20 2019 ...JERRY WEAKER BUT HEAVY RAINS FORECAST OVER THE NORTHERN LEEWARD ISLANDS... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...18.8N 60.3W ABOUT 130 MI...205 KM NE OF BARBUDA ABOUT 190 MI...300 KM ENE OF ANGUILLA MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 17 MPH...28 KM/H MINIMUM CENTRAL PRESSURE...990 MB...29.24 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * St. Maarten * St. Martin * St. Barthelemy * Saba and St. Eustatius A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within 12-24 hours. Interests elsewhere in the northern Leeward Islands should monitor the progress of Jerry. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Hurricane Jerry was located near latitude 18.8 North, longitude 60.3 West. Jerry is moving toward the west-northwest near 17 mph (28 km/h). On the forecast track, the center of Jerry will move north of the northern Leeward Islands later today, pass well north of Puerto Rico on Saturday, be well east-northeast of the southeastern Bahamas on Sunday and turn northward on Monday. Data from the Air Force Reserve and NOAA Hurricane Hunter aircraft indicate that the maximum sustained winds have decreased to near 85 mph (140 km/h) with higher gusts. Further weakening is forecast during the next day or so, with some re-strengthening possible early next week. Hurricane-force winds extend outward up to 15 miles (30 km) from the center and tropical-storm-force winds extend outward up to 80 miles (130 km). The estimated minimum central pressure from the plane data is 990 mb (29.24 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Jerry can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC and on the web at www.hurricanes.gov/text/MIATCDAT5.shtml. RAINFALL: Jerry is expected to produce 1 to 3 inches of rainfall, with isolated maximum totals of 4 to 6 inches from Barbuda northwest across St. Maarten, Anguilla, and Anegada. This rainfall may produce life-threatening flash floods. Jerry is forecast to produce total rainfall accumulations of 1 to 2 inches with maximum amounts of 3 inches across the Virgin Islands and Puerto Rico. WIND: Tropical storm conditions are possible within the watch areas later today. SURF: Swells generated by Jerry are affecting portions of the northern Leeward Islands. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 200 PM AST. Next complete advisory at 500 PM AST. $$ Forecaster Blake